{"apiVersion":"1.0","identifier":"CVE-2026-73483","description":"Flowise (packages flowise and flowise-components) in versions <= 3.1.2 contain a sandbox escape in the vm2/@flowiseai/nodevm JavaScript sandbox. An authenticated user with access to the /api/v1/node-custom-function endpoint can escape the sandbox by supplying attacker-controlled executablePath and args parameters to puppeteer.launch(), which internally invokes child_process.spawn() outside the sandbox boundary. This allows execution of arbitrary OS commands as the Flowise process user (root in the official Docker image) and arbitrary host file disclosure via Chromium-s file:// URL handling. In versions 3.0.8–3.1.2 exploitation requires ALLOW_BUILTIN_DEP=true; earlier versions are exploitable by default. Fixed in 3.1.3.","publishedAt":"2026-08-13T12:17:23","lastModifiedAt":"2026-08-14T23:16:33","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73483","cvssScore":9.4,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","epssProbability":0.00374,"riskScore":0.97,"affectedProduct":"Flowise","affectedVersions":"<=3.1.2","vulnerabilityType":"Web app","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-73483","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-73483","en":"https://www.redsauce.net/en/cves/CVE-2026-73483","fr":"https://www.redsauce.net/fr/cves/CVE-2026-73483","pt":"https://www.redsauce.net/pt/cves/CVE-2026-73483","de":"https://www.redsauce.net/de/cves/CVE-2026-73483","sk":"https://www.redsauce.net/sk/cves/CVE-2026-73483","el":"https://www.redsauce.net/el/cves/CVE-2026-73483"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-73483"}}